Imported Debian version 2.5.0~trusty1.1

[deb_ffmpeg.git] / ffmpeg / libavfilter / x86 / vf_interlace.asm

diff --git a/ffmpeg/libavfilter/x86/vf_interlace.asm b/ffmpeg/libavfilter/x86/vf_interlace.asm
new file mode 100644 (file)
index 0000000..ce3dd81
--- /dev/null
+++ b/ffmpeg/libavfilter/x86/vf_interlace.asm
@@ -0,0 +1,65 @@
+;*****************************************************************************
+;* x86-optimized functions for interlace filter
+;*
+;* Copyright (C) 2014 Kieran Kunhya <kierank@obe.tv>
+;* Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or modify
+;* it under the terms of the GNU General Public License as published by
+;* the Free Software Foundation; either version 2 of the License, or
+;* (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;* GNU General Public License for more details.
+;*
+;* You should have received a copy of the GNU General Public License along
+;* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+;* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA
+
+SECTION .text
+
+%macro LOWPASS_LINE 0
+cglobal lowpass_line, 5, 5, 7
+    add r0, r1
+    add r2, r1
+    add r3, r1
+    add r4, r1
+    neg r1
+
+    pcmpeqb m6, m6
+
+.loop
+    mova m0, [r3+r1]
+    mova m1, [r3+r1+mmsize]
+    pavgb m0, [r4+r1]
+    pavgb m1, [r4+r1+mmsize]
+    pxor m0, m6
+    pxor m1, m6
+    pxor m2, m6, [r2+r1]
+    pxor m3, m6, [r2+r1+mmsize]
+    pavgb m0, m2
+    pavgb m1, m3
+    pxor m0, m6
+    pxor m1, m6
+    mova [r0+r1], m0
+    mova [r0+r1+mmsize], m1
+
+    add r1, 2*mmsize
+    jl .loop
+REP_RET
+%endmacro
+
+INIT_XMM sse2
+LOWPASS_LINE
+
+INIT_XMM avx
+LOWPASS_LINE